Commit 952b64be authored by Martin Perdacher's avatar Martin Perdacher
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Update README.md

parent 7d24793b

README.md

+9 −0
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@@ -7,6 +7,8 @@ Accepted for [SIGMOD-2019](http://sigmod2019.org/sigmodcfp) in Amsterdam from 30 
- cmake version >= 3.7.0

- Linux package: *build-essential*, including *GNU make* version >= 4.1 



# Before compilation



To explicitly ensure, that CMake will use the GNU compiler use:



```{bash, engine='sh'}
@@ -14,6 +16,13 @@ export CXX=g++ 
export CC=gcc

```



Lookup the [compiler-flag](https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html) for your hardware. Change the `-march` flag in your `CMakeLists.txt` depending on the hardware.



Example configuration for Skylake processors:

```{bash, engine='sh'}

set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -std=c++11 -march=skylake -ffast-math -fassociative-math -O3 -fopenmp -lmkl_core -lmkl_intel_lp64 -lmkl_intel_thread -liomp5")

```



If your hardware does not support AVX-512, you could use [Intel© Software Development Emulator (SDE)](https://software.intel.com/en-us/articles/intel-software-development-emulator) to emulate AVX-512 registers.



# Build with CMake